Heat Pump Rebates in Massachusetts — The 2026 Plain-English Guide

If you're considering a heat pump in Massachusetts, there's real money on the table — but the rules are scattered across the state Mass Save program, the federal Inflation Reduction Act, your individual utility, and (for about 40 towns) a separate municipal program. Here's the short version.

The Mass Save program (most homeowners qualify)

Mass Save is the joint efficiency program funded by Massachusetts's investor-owned utilities — Eversource, National Grid, and Unitil for electric, plus the gas utilities. If you're served by one of these, the program is open to you.

For heat pumps, the headline incentive is the whole-home heat pump rebate. Recent cycles have offered up to $10,000 back for a qualifying install, provided:

• You start with a free Mass Save Home Energy Assessment, which is required to unlock the larger rebates and often finds insulation and air-sealing work that's separately subsidized at 75%+.
• The equipment meets the program's efficiency tiers (most cold-climate heat pumps from major manufacturers do).
• The system is sized to handle a meaningful share of the home's heating load — partial systems and ductless mini-splits qualify for smaller rebates, generally in the $2,500–$6,000 range.

The 0% HEAT Loan (up to $50,000) is the other lever worth knowing. It covers heat pumps, insulation, and other electrification upgrades, and it's often what makes the math cash-flow positive month one when combined with the rebate.

What the federal IRA adds on top

The 2022 Inflation Reduction Act gave heat pumps two federal incentives that stack with state rebates:

• 25C tax credit: up to $2,000 back on a qualifying heat pump install, plus 30% of the cost of associated electrical work (panel upgrades, dedicated circuits) up to $600.
• High-Efficiency Electric Home Rebate (HEEHRA): income-limited rebates of up to $8,000 for the heat pump itself for households below 150% of area median income. Massachusetts is rolling out the program through state energy agencies — check current eligibility before assuming it applies.

The IRA incentives apply regardless of utility — including in MLP towns where Mass Save doesn't reach.

The Municipal Light Plant catch

About 40 Massachusetts towns get their electricity from a Municipal Light Plant (MLP) rather than Eversource, National Grid, or Unitil. Examples include Belmont, Concord, Wellesley, Reading, Holyoke, Westfield, Taunton, Hingham, Norwood, and Mansfield (among many others).

If you're in one of these towns, you are not eligible for Mass Save rebates — the program is funded by the investor-owned utilities through your bill, and MLP customers don't pay into it. Your MLP usually runs its own efficiency program with smaller rebates: typically a few hundred to a couple thousand dollars per ton of heat pump cooling installed, depending on the town. The application goes directly through the utility rather than through Mass Save.

You can still claim the federal IRA credits in an MLP town. For most homeowners that ends up being the bulk of the available incentive.

What to ask your contractor

Before signing a quote, ask the installer to confirm:

1. Which rebates this specific equipment qualifies for at the current tier — equipment lists update yearly.
2. Whether they handle the Mass Save paperwork or if you'll need to file yourself (most established MA installers do this for you).
3. The post-rebate net cost, not just the sticker price. A $30,000 quote that nets to $18,000 after rebates is different from one with no rebate path.
4. Whether an electrical panel upgrade is included — older homes often need 200A service to handle a heat pump circuit.

Worth knowing before you start

Heat pump rebates have shifted year-over-year as the state has tightened eligibility and changed equipment tiers. If a contractor is quoting numbers that sound too good (or wildly different from another quote), check the current Mass Save program page directly — the rebate amounts published there are authoritative, and your installer should be quoting against the same sheet.